Founder and president of the Louis D. Brandeis Center for Human Rights Under Law, Kenneth Marcus offers an indispensable book about the manner in which anti-Semitism has evolved from the ancient world to the present, from religious anti-Judaism to secular anti-Semitism. The Definition of Anti-Semitism describes many instances of anti-Semitism that have occurred in recent years and examines why they constitute anti-Jewish hatred as the meaning of the term has evolved with the times.